Lamp.



J. U. BARR.

LAMP.

' APPLICATION FILED 0OT.9, 1912.

Patented June 30, 1914 fez/b41 02":

zfznesses:

JOHN U. BARR, OF NEW YORK, N. Y.

LAMP.

Specification of Letters Patent.

Patented J nne 30, 1914.

Application filed October 9, 1912. Serial No. 724,732.

To all whom it may concern:

Be it known that I, JOHN U. BARR, a citizen of the United States, residing at New York city, in the county and State of New York, have. invented'certain new and useful Improvements in Lamps, of which the following is a clear, full, and exact description.

The object of this invention is to provide a new and improved head light for automobiles and other'uses, where a very strong light is to be used, and where the major portion of the light finds its greatest use for reflection over a portion of the space in front of the lamp.

A particular use to which my invention is applicableis automobile head lights, where a strong light is reflected through a glass front to the lamp, and where the useful rays of light for the party driving car. are upon the ground in front of the machine.

My invention partially obstructs the strong reflected light through the upper portion of the glass front of a lamp, when used for automobile work, so that an approaching driver will not be dazzled by the light, but the driver of the car provided with a lamp of my invention will have the same amount of light on his road that he is to travel.

In carrying out my invention in the preferred embodiment thereof, I provide a lamp casing having any desirable source of light therein with a glass front, having one clear portion and another portion either opaque or semi-transparent, and preferably the clear and semi-transparent portions each covers substantially half of the glass, the semi-transparent portion preferably having :1 depending tab which comes into direct line with the center rays of the reflected light from the casing. In this preferred embodiment I place for advertising purposes opaque or contrasting letters on the semi-transparent or opaque portion of the glass front.

The scope of my invention will be pointed outin the claim.

In the accompanying drawings, Figure 1 is a side elevation partly broken away of my improved lamp. Fig. 2 is a face view of the lamp.

As shown in Fig. 1, the lamp casing 1 is provided with the usual reflector 2, and a source of light 3, which may be any source desired. It is shown as a gasburner in the drawings. At the front of the'casing I mount a glass plate 4 provided with a portion 5 located above the horizontal center line of the reflector, which projects the light forward. This portion 5 is either opaque or semi-transparent to cloud or diminish the strength of the rays projected through the lens. The part 5 is preferably composed of colored matter on the glass itself, such as a stain. I prefer to affix a projection of opaque or semi-transparent material around the center portion of the globe, or that portion through which the center line of reflected light will pass to obscure such portion, and upon such portion preferably I provide advertising lettering such as 7. Where the part 5 and projection 6 are opaque, the lettering is preferably transparent or semi-transparent. Where the portion 5 and tab6 are semi-transparent, the lettering is preferably opaque, so as to make a contract to produce an artistic and pleasing effect to. the eye.

The obscure portion of the plate may be formed by providing varnish or baking coloring matter on to the glass. or in any other Well known manner of producing a stained glass, or by placing an opaque plate next to J OHN U. BARR.

Witnesses:

ALBERT H. T. BANZHAF, I F. WARREN WRIGHT. 

